The 2016 presidential campaign has in many ways become a question of character. Even though Hillary Clinton and Donald Trump both have incredibly loyal supporters, the two candidates also inspire some intensely negative feelings among voters. Clinton and Trump are the two most unpopular candidates since modern polling began.

The definition of postpartum depression is broad. The symptoms can range anywhere from feeling exhausted and disconnected from your baby to paranoia that someone else might hurt your child or, even worse, that you yourself might do your baby harm.

We could start this story as we usually do with reminding of you of all the recent school shootings — including one just Thursday night at Tennessee State University — reporting how many people were killed, what inspired the shooter. We could hear local leaders condemning the acts of violence.

But this narrative is so much a part of our culture and our politics right now that we don't need to remind you how we got here.

Instead, let's meet a couple of people who have dedicated much of their professional lives to preventing this kind of violence.

It used to be a given: When your kids reached school age, they'd strap on their backpacks and head for the neighborhood elementary school. Or, you'd pay a hefty tuition to send them to private school.

In the last two decades, a third option has emerged. Today, there are more than 6,000 charter schools in the country. And lately, they've been the subject of passionate and often acrimonious debate about the right way to fix public education in America.

Thousands of migrants fleeing war in their home countries have have made it into Germany and to Berlin.

Once they arrive here, they begin the waiting game.

Germany is expecting at least 800,000 migrants this year alone, and Germans are struggling with the changes they bring.

At Berlin's main processing center for migrants, at a social service ministry, people are handed a number on a slip of paper. They crowd around a digital screen in the ministry courtyard to watch for their number to flash, indicating they can go inside to begin the asylum process.

In cities with high crime rates, like Newark, N.J., figuring out the right balance of police engagement is especially hard.

In 2013, Newark had 40 homicides per 100,000 residents, the third-highest homicide rate in the country.

Last fall, the new mayor, Ras Baraka, announced a plan to tackle the crime and neglect that have plagued the city's worst neighborhoods. He started by focusing on two of the toughest: Clinton Hill and the Lower West Ward. I asked him in January how he'll know the program is working.

It is part of the American dream, the notion that if you have a good idea and a fire in your belly, you can turn an idea into a successful business. It's that entrepreneurial spirit that drives the global economy.

That message is everywhere in our culture. President Obama echoed it last week, at a summit on entrepreneurship at the White House.

"We have a lot of brainpower here," he said. "We've got innovators and investors, business leaders, entrepreneurs. We've even got a few Sharks."

#NPRreads is a new feature we're testing out on Twitter and on The Two-Way. The premise is simple: Correspondents, editors and producers throughout our newsroom will share pieces that have kept them reading. They'll share tidbits on Twitter using the #NPRreads hashtag, and on occasion we'll share a longer take here on the blog.

This week, we bring you threes reads and — we're cheating — one watch.

Detroit's Orchestra Hall is one of the best symphony concert halls in the country. The acoustics are top-notch. The theater itself is grand. Important music is made there by some of the country's most talented classical musicians.